Rate-Independent Subdomain Deployment for Network Energy Optimization
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Solution Overview
Problem
Current rate-adaptation techniques in network nodes face challenges such as the lack of coordination between devices, leading to substantial drops in energy-saving performance, and the need for broad consensus or cooperation across the network, as well as the absence of clear design guidelines for selecting the best energy-saving and delay trade-off.
Innovation Solution
The method involves partitioning network nodes into subdomains with rate-independent connecting interfaces, where one subdomain operates as a rate-independent domain, controlling the operating state of processing units to minimize energy consumption while maintaining data integrity, and selecting state variables to satisfy a feasible departure curve, which can be an optimal departure curve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If rate-scaling is used to reduce power consumption under low traffic loads, then energy efficiency is improved, but delay accumulation increases due to reduced processing rates
Solution Approach 1:
The patent implements dynamic rate adaptation by allowing network nodes to dynamically adjust their operating rates based on real-time traffic conditions. Nodes can transition between different operational states (active, sleep, hibernation) and adjust clock frequencies dynamically, enabling the system to optimize the trade-off between power consumption and delay accumulation adaptively rather than using fixed rate-scaling parameters
Solution Approach 2:
The patent changes multiple operating parameters simultaneously including clock frequency, voltage levels, and operational state transitions. By adjusting these parameters dynamically based on traffic load, the system can achieve significant power savings while maintaining acceptable delay performance through coordinated parameter modification rather than simple frequency scaling
2Use of energy by moving object
If sleep-state exploitation is used to achieve significant power savings, then energy efficiency is improved, but coordination between network nodes becomes necessary which increases system complexity
Solution Approach 1:
The patent segments the network into independent rate-adaptation domains where each domain operates autonomously without requiring coordination with other domains. This segmentation allows individual nodes to implement sleep-state exploitation independently, achieving power savings while avoiding the coordination complexity that would arise from network-wide synchronization requirements
Solution Approach 2:
Each network node performs self-service rate adaptation by independently monitoring its own traffic conditions and autonomously transitioning between operational states. Nodes make local decisions about when to enter sleep or hibernation states based on their own buffer conditions and traffic patterns, eliminating the need for inter-node coordination protocols and reducing system complexity
3Use of energy by moving object
If rate-adaptation devices are deployed across the network to improve energy efficiency, then power consumption is reduced, but deployment difficulty increases due to lack of coordination frameworks
Solution Approach 1:
The patent divides the network into independent rate-adaptation domains that can be deployed incrementally without requiring network-wide coordination. Each domain operates autonomously, allowing operators to deploy rate-adaptation devices in individual nodes or segments without needing to coordinate deployment across the entire network, significantly easing implementation
Solution Approach 2:
The patent introduces rate-independent connecting interfaces as intermediaries between rate-adaptation domains. These interfaces ensure data integrity and proper packet handling while allowing independent rate adaptation in each domain, facilitating easier deployment by providing a standardized mechanism for inter-domain communication without requiring complex coordination protocols
4Use of energy by moving object
If rate scaling is applied to track traffic load, then energy efficiency is improved, but additional components must be added for coordination which increases device complexity
Solution Approach 1:
Network nodes perform self-service rate adaptation by independently monitoring their own traffic conditions, buffer states, and operational parameters. Each node autonomously determines when to scale rates or transition states based on local conditions, eliminating the need for additional coordination components such as centralized controllers or inter-node communication protocols for rate synchronization
Data Source
AI summary
A method and system of coordination independent rate adaptation is disclosed. The method and system of coordination independent rate adaptation provides for deploying a rate adaptation subdomain into a packet network having no rate adaptation coordination among the network nodes. The method and system is particularly useful for incremental introduction of rate-adaptive devices in existing networks; combining the best properties of sleep-state exploitation and rate scaling techniques by defining a class of state-setting policies for rate adaptation schemes that enforce tight deterministic bounds on the extra delay that the schemes may cause to network traffic at every node where they are deployed.